I think that employers who cling to the idea that people have to be where they can be supervised may well find that they struggle to get staff, as anyone with a choice may prefer to work for a more enlightened company.
Clearly people in sectors such as manufacturing will have to go in, but with adaptations most people will be able to work from home for at least part of the week.
There will be a reshuffle, and possibly a re-ordering of occupations, just as the design of houses may adapt to new ways of working, so that instead of working as I did, on the sofa with a laptop, both partners/spouses will have their own designated workspace, even if it is an alcove somewhere.
We have been through several seismic shifts in lifestyle before (enclosures forcing people to become 'workers', the Industrial Revolution, mechanisation of factories etc) and things settled down afterwards. There will have been winners and losers amongst those caught up in the maelstrom; but the difference this time is that this is global. Previously, it was groups of people - miners, mill workers, peasant farmers - who were directly involved, but now it is everyone, so if we pull together we could all benefit. Again, though, that would take vision, and a government with the will to do it.